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Finding the Fourth Proportional to 107,217, 147,959.58 and 62,513.64

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Solution

The fourth proportional to 107,217, 147,959.58 and 62,513.64 is: 86,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,217 : 147,959.58 = 62,513.64 : x
  2. Step 2: Convert to fraction form
    107,217/147,959.58 = 62,513.64/x
  3. Step 3: Cross multiply
    107,217x = 147,959.58 × 62,513.64
  4. Step 4: Simplify right side
    107,217x = 9,249,491,918.67
  5. Step 5: Solve for x
    x = 9,249,491,918.67/107,217
  6. Step 6: Final answer
    x = 86,268.89

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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.