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Finding the Fourth Proportional to 177,253.76, 265,930.88 and 72,148.16

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Solution

The fourth proportional to 177,253.76, 265,930.88 and 72,148.16 is: 108,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,253.76 : 265,930.88 = 72,148.16 : x
  2. Step 2: Convert to fraction form
    177,253.76/265,930.88 = 72,148.16/x
  3. Step 3: Cross multiply
    177,253.76x = 265,930.88 × 72,148.16
  4. Step 4: Simplify right side
    177,253.76x = 19,186,423,679.18
  5. Step 5: Solve for x
    x = 19,186,423,679.18/177,253.76
  6. Step 6: Final answer
    x = 108,242.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.