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Finding the Fourth Proportional to 93,985.71, 140,931.90 and 29,935.50

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Solution

The fourth proportional to 93,985.71, 140,931.90 and 29,935.50 is: 44,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,985.71 : 140,931.90 = 29,935.50 : x
  2. Step 2: Convert to fraction form
    93,985.71/140,931.90 = 29,935.50/x
  3. Step 3: Cross multiply
    93,985.71x = 140,931.90 × 29,935.50
  4. Step 4: Simplify right side
    93,985.71x = 4,218,866,892.45
  5. Step 5: Solve for x
    x = 4,218,866,892.45/93,985.71
  6. Step 6: Final answer
    x = 44,888.39

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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.