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Finding the Fourth Proportional to 98,487,736.80, 147,507,656.40 and 62,208,031.20

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Solution

The fourth proportional to 98,487,736.80, 147,507,656.40 and 62,208,031.20 is: 93,170,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,487,736.80 : 147,507,656.40 = 62,208,031.20 : x
  2. Step 2: Convert to fraction form
    98,487,736.80/147,507,656.40 = 62,208,031.20/x
  3. Step 3: Cross multiply
    98,487,736.80x = 147,507,656.40 × 62,208,031.20
  4. Step 4: Simplify right side
    98,487,736.80x = 9,176,160,891,570,080
  5. Step 5: Solve for x
    x = 9,176,160,891,570,080/98,487,736.80
  6. Step 6: Final answer
    x = 93,170,593.51

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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.