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Finding the Fourth Proportional to 218,988.60, 328,482.14 and 52,776.60

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Solution

The fourth proportional to 218,988.60, 328,482.14 and 52,776.60 is: 79,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,988.60 : 328,482.14 = 52,776.60 : x
  2. Step 2: Convert to fraction form
    218,988.60/328,482.14 = 52,776.60/x
  3. Step 3: Cross multiply
    218,988.60x = 328,482.14 × 52,776.60
  4. Step 4: Simplify right side
    218,988.60x = 17,336,170,509.92
  5. Step 5: Solve for x
    x = 17,336,170,509.92/218,988.60
  6. Step 6: Final answer
    x = 79,164.72

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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.