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Finding the Fourth Proportional to 107,101.40, 147,801.12 and 59,355.68

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Solution

The fourth proportional to 107,101.40, 147,801.12 and 59,355.68 is: 81,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,101.40 : 147,801.12 = 59,355.68 : x
  2. Step 2: Convert to fraction form
    107,101.40/147,801.12 = 59,355.68/x
  3. Step 3: Cross multiply
    107,101.40x = 147,801.12 × 59,355.68
  4. Step 4: Simplify right side
    107,101.40x = 8,772,835,982.36
  5. Step 5: Solve for x
    x = 8,772,835,982.36/107,101.40
  6. Step 6: Final answer
    x = 81,911.50

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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.