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Finding the Fourth Proportional to 93,314.60, 128,897.06 and 69,164.52

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Solution

The fourth proportional to 93,314.60, 128,897.06 and 69,164.52 is: 95,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,314.60 : 128,897.06 = 69,164.52 : x
  2. Step 2: Convert to fraction form
    93,314.60/128,897.06 = 69,164.52/x
  3. Step 3: Cross multiply
    93,314.60x = 128,897.06 × 69,164.52
  4. Step 4: Simplify right side
    93,314.60x = 8,915,103,284.31
  5. Step 5: Solve for x
    x = 8,915,103,284.31/93,314.60
  6. Step 6: Final answer
    x = 95,538.14

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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.