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Finding the Fourth Proportional to 127,635.61, 176,153.67 and 73,209.01

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Solution

The fourth proportional to 127,635.61, 176,153.67 and 73,209.01 is: 101,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,635.61 : 176,153.67 = 73,209.01 : x
  2. Step 2: Convert to fraction form
    127,635.61/176,153.67 = 73,209.01/x
  3. Step 3: Cross multiply
    127,635.61x = 176,153.67 × 73,209.01
  4. Step 4: Simplify right side
    127,635.61x = 12,896,035,788.57
  5. Step 5: Solve for x
    x = 12,896,035,788.57/127,635.61
  6. Step 6: Final answer
    x = 101,037.91

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1.5x scale

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.