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Finding the Fourth Proportional to 124,312.90, 186,469.35 and 57,730.90

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Solution

The fourth proportional to 124,312.90, 186,469.35 and 57,730.90 is: 86,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,312.90 : 186,469.35 = 57,730.90 : x
  2. Step 2: Convert to fraction form
    124,312.90/186,469.35 = 57,730.90/x
  3. Step 3: Cross multiply
    124,312.90x = 186,469.35 × 57,730.90
  4. Step 4: Simplify right side
    124,312.90x = 10,765,043,397.92
  5. Step 5: Solve for x
    x = 10,765,043,397.92/124,312.90
  6. Step 6: Final answer
    x = 86,596.35

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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.