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Finding the Fourth Proportional to 124,307.85, 186,510.98 and 45,428.22

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Solution

The fourth proportional to 124,307.85, 186,510.98 and 45,428.22 is: 68,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,307.85 : 186,510.98 = 45,428.22 : x
  2. Step 2: Convert to fraction form
    124,307.85/186,510.98 = 45,428.22/x
  3. Step 3: Cross multiply
    124,307.85x = 186,510.98 × 45,428.22
  4. Step 4: Simplify right side
    124,307.85x = 8,472,861,604.71
  5. Step 5: Solve for x
    x = 8,472,861,604.71/124,307.85
  6. Step 6: Final answer
    x = 68,160.31

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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.