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Finding the Fourth Proportional to 93,318.95, 128,782.10 and 52,483.87

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Solution

The fourth proportional to 93,318.95, 128,782.10 and 52,483.87 is: 72,428.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,318.95 : 128,782.10 = 52,483.87 : x
  2. Step 2: Convert to fraction form
    93,318.95/128,782.10 = 52,483.87/x
  3. Step 3: Cross multiply
    93,318.95x = 128,782.10 × 52,483.87
  4. Step 4: Simplify right side
    93,318.95x = 6,758,982,088.40
  5. Step 5: Solve for x
    x = 6,758,982,088.40/93,318.95
  6. Step 6: Final answer
    x = 72,428.83

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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.