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Finding the Fourth Proportional to 100,602,043.70, 150,903,065.55 and 83,595,931.70

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Solution

The fourth proportional to 100,602,043.70, 150,903,065.55 and 83,595,931.70 is: 125,393,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,043.70 : 150,903,065.55 = 83,595,931.70 : x
  2. Step 2: Convert to fraction form
    100,602,043.70/150,903,065.55 = 83,595,931.70/x
  3. Step 3: Cross multiply
    100,602,043.70x = 150,903,065.55 × 83,595,931.70
  4. Step 4: Simplify right side
    100,602,043.70x = 12,614,882,361,038,424
  5. Step 5: Solve for x
    x = 12,614,882,361,038,424/100,602,043.70
  6. Step 6: Final answer
    x = 125,393,897.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.