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Finding the Fourth Proportional to 157,502,813.80, 219,966,462.20 and 157,502,813.80

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Solution

The fourth proportional to 157,502,813.80, 219,966,462.20 and 157,502,813.80 is: 219,966,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,502,813.80 : 219,966,462.20 = 157,502,813.80 : x
  2. Step 2: Convert to fraction form
    157,502,813.80/219,966,462.20 = 157,502,813.80/x
  3. Step 3: Cross multiply
    157,502,813.80x = 219,966,462.20 × 157,502,813.80
  4. Step 4: Simplify right side
    157,502,813.80x = 34,645,336,738,131,340
  5. Step 5: Solve for x
    x = 34,645,336,738,131,340/157,502,813.80
  6. Step 6: Final answer
    x = 219,966,462.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.