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Finding the Fourth Proportional to 103,775.70, 155,663.55 and 93,606.15

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Solution

The fourth proportional to 103,775.70, 155,663.55 and 93,606.15 is: 140,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,775.70 : 155,663.55 = 93,606.15 : x
  2. Step 2: Convert to fraction form
    103,775.70/155,663.55 = 93,606.15/x
  3. Step 3: Cross multiply
    103,775.70x = 155,663.55 × 93,606.15
  4. Step 4: Simplify right side
    103,775.70x = 14,571,065,610.83
  5. Step 5: Solve for x
    x = 14,571,065,610.83/103,775.70
  6. Step 6: Final answer
    x = 140,409.23

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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.