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Finding the Fourth Proportional to 137,657.55, 190,034.28 and 92,319.06

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Solution

The fourth proportional to 137,657.55, 190,034.28 and 92,319.06 is: 127,445.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,657.55 : 190,034.28 = 92,319.06 : x
  2. Step 2: Convert to fraction form
    137,657.55/190,034.28 = 92,319.06/x
  3. Step 3: Cross multiply
    137,657.55x = 190,034.28 × 92,319.06
  4. Step 4: Simplify right side
    137,657.55x = 17,543,786,097.38
  5. Step 5: Solve for x
    x = 17,543,786,097.38/137,657.55
  6. Step 6: Final answer
    x = 127,445.14

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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.