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Finding the Fourth Proportional to 73,215,686.50, 101,084,978.45 and 45,367,948.47

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Solution

The fourth proportional to 73,215,686.50, 101,084,978.45 and 45,367,948.47 is: 62,637,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,215,686.50 : 101,084,978.45 = 45,367,948.47 : x
  2. Step 2: Convert to fraction form
    73,215,686.50/101,084,978.45 = 45,367,948.47/x
  3. Step 3: Cross multiply
    73,215,686.50x = 101,084,978.45 × 45,367,948.47
  4. Step 4: Simplify right side
    73,215,686.50x = 4,586,018,092,937,201
  5. Step 5: Solve for x
    x = 4,586,018,092,937,201/73,215,686.50
  6. Step 6: Final answer
    x = 62,637,097.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.