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Finding the Fourth Proportional to 147,570.40, 221,326.80 and 49,074.40

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Solution

The fourth proportional to 147,570.40, 221,326.80 and 49,074.40 is: 73,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,570.40 : 221,326.80 = 49,074.40 : x
  2. Step 2: Convert to fraction form
    147,570.40/221,326.80 = 49,074.40/x
  3. Step 3: Cross multiply
    147,570.40x = 221,326.80 × 49,074.40
  4. Step 4: Simplify right side
    147,570.40x = 10,861,479,913.92
  5. Step 5: Solve for x
    x = 10,861,479,913.92/147,570.40
  6. Step 6: Final answer
    x = 73,602.02

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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.