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Finding the Fourth Proportional to 112,034.40, 168,051.60 and 52,985.40

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Solution

The fourth proportional to 112,034.40, 168,051.60 and 52,985.40 is: 79,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,034.40 : 168,051.60 = 52,985.40 : x
  2. Step 2: Convert to fraction form
    112,034.40/168,051.60 = 52,985.40/x
  3. Step 3: Cross multiply
    112,034.40x = 168,051.60 × 52,985.40
  4. Step 4: Simplify right side
    112,034.40x = 8,904,281,246.64
  5. Step 5: Solve for x
    x = 8,904,281,246.64/112,034.40
  6. Step 6: Final answer
    x = 79,478.10

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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.