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Finding the Fourth Proportional to 218,656.80, 301,637.52 and 147,039.84

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Solution

The fourth proportional to 218,656.80, 301,637.52 and 147,039.84 is: 202,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,656.80 : 301,637.52 = 147,039.84 : x
  2. Step 2: Convert to fraction form
    218,656.80/301,637.52 = 147,039.84/x
  3. Step 3: Cross multiply
    218,656.80x = 301,637.52 × 147,039.84
  4. Step 4: Simplify right side
    218,656.80x = 44,352,732,678.80
  5. Step 5: Solve for x
    x = 44,352,732,678.80/218,656.80
  6. Step 6: Final answer
    x = 202,841.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.