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Finding the Fourth Proportional to 127,966.50, 176,585.76 and 70,606.50

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Solution

The fourth proportional to 127,966.50, 176,585.76 and 70,606.50 is: 97,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,966.50 : 176,585.76 = 70,606.50 : x
  2. Step 2: Convert to fraction form
    127,966.50/176,585.76 = 70,606.50/x
  3. Step 3: Cross multiply
    127,966.50x = 176,585.76 × 70,606.50
  4. Step 4: Simplify right side
    127,966.50x = 12,468,102,463.44
  5. Step 5: Solve for x
    x = 12,468,102,463.44/127,966.50
  6. Step 6: Final answer
    x = 97,432.55

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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.