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Finding the Fourth Proportional to 100,903,952.70, 151,355,929.05 and 88,149,368.70

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Solution

The fourth proportional to 100,903,952.70, 151,355,929.05 and 88,149,368.70 is: 132,224,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,903,952.70 : 151,355,929.05 = 88,149,368.70 : x
  2. Step 2: Convert to fraction form
    100,903,952.70/151,355,929.05 = 88,149,368.70/x
  3. Step 3: Cross multiply
    100,903,952.70x = 151,355,929.05 × 88,149,368.70
  4. Step 4: Simplify right side
    100,903,952.70x = 13,341,929,594,759,492
  5. Step 5: Solve for x
    x = 13,341,929,594,759,492/100,903,952.70
  6. Step 6: Final answer
    x = 132,224,053.05

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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.