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Finding the Fourth Proportional to 140,557.68, 209,937.60 and 127,210.32

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Solution

The fourth proportional to 140,557.68, 209,937.60 and 127,210.32 is: 190,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,557.68 : 209,937.60 = 127,210.32 : x
  2. Step 2: Convert to fraction form
    140,557.68/209,937.60 = 127,210.32/x
  3. Step 3: Cross multiply
    140,557.68x = 209,937.60 × 127,210.32
  4. Step 4: Simplify right side
    140,557.68x = 26,706,229,276.03
  5. Step 5: Solve for x
    x = 26,706,229,276.03/140,557.68
  6. Step 6: Final answer
    x = 190,001.92

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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.