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Finding the Fourth Proportional to 124,624.60, 186,915.30 and 45,698.20

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Solution

The fourth proportional to 124,624.60, 186,915.30 and 45,698.20 is: 68,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,624.60 : 186,915.30 = 45,698.20 : x
  2. Step 2: Convert to fraction form
    124,624.60/186,915.30 = 45,698.20/x
  3. Step 3: Cross multiply
    124,624.60x = 186,915.30 × 45,698.20
  4. Step 4: Simplify right side
    124,624.60x = 8,541,692,762.46
  5. Step 5: Solve for x
    x = 8,541,692,762.46/124,624.60
  6. Step 6: Final answer
    x = 68,539.38

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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.