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Finding the Fourth Proportional to 153,342.40, 230,013.60 and 42,534.40

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Solution

The fourth proportional to 153,342.40, 230,013.60 and 42,534.40 is: 63,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,342.40 : 230,013.60 = 42,534.40 : x
  2. Step 2: Convert to fraction form
    153,342.40/230,013.60 = 42,534.40/x
  3. Step 3: Cross multiply
    153,342.40x = 230,013.60 × 42,534.40
  4. Step 4: Simplify right side
    153,342.40x = 9,783,490,467.84
  5. Step 5: Solve for x
    x = 9,783,490,467.84/153,342.40
  6. Step 6: Final answer
    x = 63,801.60

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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.