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Finding the Fourth Proportional to 70,549.40, 105,848.42 and 60,098.58

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Solution

The fourth proportional to 70,549.40, 105,848.42 and 60,098.58 is: 90,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,549.40 : 105,848.42 = 60,098.58 : x
  2. Step 2: Convert to fraction form
    70,549.40/105,848.42 = 60,098.58/x
  3. Step 3: Cross multiply
    70,549.40x = 105,848.42 × 60,098.58
  4. Step 4: Simplify right side
    70,549.40x = 6,361,339,436.75
  5. Step 5: Solve for x
    x = 6,361,339,436.75/70,549.40
  6. Step 6: Final answer
    x = 90,168.58

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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.