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Finding the Fourth Proportional to 105,387.68, 157,330.28 and 101,696.24

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Solution

The fourth proportional to 105,387.68, 157,330.28 and 101,696.24 is: 151,819.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,387.68 : 157,330.28 = 101,696.24 : x
  2. Step 2: Convert to fraction form
    105,387.68/157,330.28 = 101,696.24/x
  3. Step 3: Cross multiply
    105,387.68x = 157,330.28 × 101,696.24
  4. Step 4: Simplify right side
    105,387.68x = 15,999,897,914.15
  5. Step 5: Solve for x
    x = 15,999,897,914.15/105,387.68
  6. Step 6: Final answer
    x = 151,819.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.