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Finding the Fourth Proportional to 93,437.40, 140,156.10 and 77,034.90

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Solution

The fourth proportional to 93,437.40, 140,156.10 and 77,034.90 is: 115,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,437.40 : 140,156.10 = 77,034.90 : x
  2. Step 2: Convert to fraction form
    93,437.40/140,156.10 = 77,034.90/x
  3. Step 3: Cross multiply
    93,437.40x = 140,156.10 × 77,034.90
  4. Step 4: Simplify right side
    93,437.40x = 10,796,911,147.89
  5. Step 5: Solve for x
    x = 10,796,911,147.89/93,437.40
  6. Step 6: Final answer
    x = 115,552.35

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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.