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Finding the Fourth Proportional to 107,098.08, 147,799.08 and 64,648.32

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Solution

The fourth proportional to 107,098.08, 147,799.08 and 64,648.32 is: 89,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,098.08 : 147,799.08 = 64,648.32 : x
  2. Step 2: Convert to fraction form
    107,098.08/147,799.08 = 64,648.32/x
  3. Step 3: Cross multiply
    107,098.08x = 147,799.08 × 64,648.32
  4. Step 4: Simplify right side
    107,098.08x = 9,554,962,219.55
  5. Step 5: Solve for x
    x = 9,554,962,219.55/107,098.08
  6. Step 6: Final answer
    x = 89,216.93

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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.