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Finding the Fourth Proportional to 93,487.32, 129,023.88 and 53,210.88

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Solution

The fourth proportional to 93,487.32, 129,023.88 and 53,210.88 is: 73,437.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,487.32 : 129,023.88 = 53,210.88 : x
  2. Step 2: Convert to fraction form
    93,487.32/129,023.88 = 53,210.88/x
  3. Step 3: Cross multiply
    93,487.32x = 129,023.88 × 53,210.88
  4. Step 4: Simplify right side
    93,487.32x = 6,865,474,195.81
  5. Step 5: Solve for x
    x = 6,865,474,195.81/93,487.32
  6. Step 6: Final answer
    x = 73,437.49

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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.