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Finding the Fourth Proportional to 124,222.88, 186,276.98 and 39,967.40

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Solution

The fourth proportional to 124,222.88, 186,276.98 and 39,967.40 is: 59,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,222.88 : 186,276.98 = 39,967.40 : x
  2. Step 2: Convert to fraction form
    124,222.88/186,276.98 = 39,967.40/x
  3. Step 3: Cross multiply
    124,222.88x = 186,276.98 × 39,967.40
  4. Step 4: Simplify right side
    124,222.88x = 7,445,006,570.45
  5. Step 5: Solve for x
    x = 7,445,006,570.45/124,222.88
  6. Step 6: Final answer
    x = 59,932.65

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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.