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Finding the Fourth Proportional to 112,681.60, 168,967.80 and 56,497.60

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Solution

The fourth proportional to 112,681.60, 168,967.80 and 56,497.60 is: 84,719.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,681.60 : 168,967.80 = 56,497.60 : x
  2. Step 2: Convert to fraction form
    112,681.60/168,967.80 = 56,497.60/x
  3. Step 3: Cross multiply
    112,681.60x = 168,967.80 × 56,497.60
  4. Step 4: Simplify right side
    112,681.60x = 9,546,275,177.28
  5. Step 5: Solve for x
    x = 9,546,275,177.28/112,681.60
  6. Step 6: Final answer
    x = 84,719.02

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1.5x scale

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.