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Finding the Fourth Proportional to 124,860, 187,290.18 and 50,988

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Solution

The fourth proportional to 124,860, 187,290.18 and 50,988 is: 76,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,860 : 187,290.18 = 50,988 : x
  2. Step 2: Convert to fraction form
    124,860/187,290.18 = 50,988/x
  3. Step 3: Cross multiply
    124,860x = 187,290.18 × 50,988
  4. Step 4: Simplify right side
    124,860x = 9,549,551,697.84
  5. Step 5: Solve for x
    x = 9,549,551,697.84/124,860
  6. Step 6: Final answer
    x = 76,482.07

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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.