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Finding the Fourth Proportional to 124,328.10, 186,492.15 and 45,498.90

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Solution

The fourth proportional to 124,328.10, 186,492.15 and 45,498.90 is: 68,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,328.10 : 186,492.15 = 45,498.90 : x
  2. Step 2: Convert to fraction form
    124,328.10/186,492.15 = 45,498.90/x
  3. Step 3: Cross multiply
    124,328.10x = 186,492.15 × 45,498.90
  4. Step 4: Simplify right side
    124,328.10x = 8,485,187,683.64
  5. Step 5: Solve for x
    x = 8,485,187,683.64/124,328.10
  6. Step 6: Final answer
    x = 68,248.35

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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.