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Finding the Fourth Proportional to 177,390.32, 266,120.52 and 65,071.58

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Solution

The fourth proportional to 177,390.32, 266,120.52 and 65,071.58 is: 97,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,390.32 : 266,120.52 = 65,071.58 : x
  2. Step 2: Convert to fraction form
    177,390.32/266,120.52 = 65,071.58/x
  3. Step 3: Cross multiply
    177,390.32x = 266,120.52 × 65,071.58
  4. Step 4: Simplify right side
    177,390.32x = 17,316,881,376.22
  5. Step 5: Solve for x
    x = 17,316,881,376.22/177,390.32
  6. Step 6: Final answer
    x = 97,620.22

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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.