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Finding the Fourth Proportional to 154,957.30, 213,751.01 and 97,574.12

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Solution

The fourth proportional to 154,957.30, 213,751.01 and 97,574.12 is: 134,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,957.30 : 213,751.01 = 97,574.12 : x
  2. Step 2: Convert to fraction form
    154,957.30/213,751.01 = 97,574.12/x
  3. Step 3: Cross multiply
    154,957.30x = 213,751.01 × 97,574.12
  4. Step 4: Simplify right side
    154,957.30x = 20,856,566,699.86
  5. Step 5: Solve for x
    x = 20,856,566,699.86/154,957.30
  6. Step 6: Final answer
    x = 134,595.57

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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.