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Finding the Fourth Proportional to 77,646.52, 107,152.16 and 44,112.52

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Solution

The fourth proportional to 77,646.52, 107,152.16 and 44,112.52 is: 60,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,646.52 : 107,152.16 = 44,112.52 : x
  2. Step 2: Convert to fraction form
    77,646.52/107,152.16 = 44,112.52/x
  3. Step 3: Cross multiply
    77,646.52x = 107,152.16 × 44,112.52
  4. Step 4: Simplify right side
    77,646.52x = 4,726,751,801.04
  5. Step 5: Solve for x
    x = 4,726,751,801.04/77,646.52
  6. Step 6: Final answer
    x = 60,875.26

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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.