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Finding the Fourth Proportional to 107,854.72, 148,850.64 and 64,848.28

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Solution

The fourth proportional to 107,854.72, 148,850.64 and 64,848.28 is: 89,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,854.72 : 148,850.64 = 64,848.28 : x
  2. Step 2: Convert to fraction form
    107,854.72/148,850.64 = 64,848.28/x
  3. Step 3: Cross multiply
    107,854.72x = 148,850.64 × 64,848.28
  4. Step 4: Simplify right side
    107,854.72x = 9,652,707,980.90
  5. Step 5: Solve for x
    x = 9,652,707,980.90/107,854.72
  6. Step 6: Final answer
    x = 89,497.32

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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.