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Finding the Fourth Proportional to 127,803.52, 176,327.04 and 77,484.16

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Solution

The fourth proportional to 127,803.52, 176,327.04 and 77,484.16 is: 106,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,803.52 : 176,327.04 = 77,484.16 : x
  2. Step 2: Convert to fraction form
    127,803.52/176,327.04 = 77,484.16/x
  3. Step 3: Cross multiply
    127,803.52x = 176,327.04 × 77,484.16
  4. Step 4: Simplify right side
    127,803.52x = 13,662,552,579.69
  5. Step 5: Solve for x
    x = 13,662,552,579.69/127,803.52
  6. Step 6: Final answer
    x = 106,902.79

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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.