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Finding the Fourth Proportional to 230,461.74, 345,692.61 and 72,702.45

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Solution

The fourth proportional to 230,461.74, 345,692.61 and 72,702.45 is: 109,053.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,461.74 : 345,692.61 = 72,702.45 : x
  2. Step 2: Convert to fraction form
    230,461.74/345,692.61 = 72,702.45/x
  3. Step 3: Cross multiply
    230,461.74x = 345,692.61 × 72,702.45
  4. Step 4: Simplify right side
    230,461.74x = 25,132,699,693.89
  5. Step 5: Solve for x
    x = 25,132,699,693.89/230,461.74
  6. Step 6: Final answer
    x = 109,053.68

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1.5x scale

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.