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Finding the Fourth Proportional to 107,485.70, 161,228.55 and 88,458.80

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Solution

The fourth proportional to 107,485.70, 161,228.55 and 88,458.80 is: 132,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,485.70 : 161,228.55 = 88,458.80 : x
  2. Step 2: Convert to fraction form
    107,485.70/161,228.55 = 88,458.80/x
  3. Step 3: Cross multiply
    107,485.70x = 161,228.55 × 88,458.80
  4. Step 4: Simplify right side
    107,485.70x = 14,262,084,058.74
  5. Step 5: Solve for x
    x = 14,262,084,058.74/107,485.70
  6. Step 6: Final answer
    x = 132,688.20

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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.