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Finding the Fourth Proportional to 72,461.40, 108,692.10 and 59,328.60

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Solution

The fourth proportional to 72,461.40, 108,692.10 and 59,328.60 is: 88,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,461.40 : 108,692.10 = 59,328.60 : x
  2. Step 2: Convert to fraction form
    72,461.40/108,692.10 = 59,328.60/x
  3. Step 3: Cross multiply
    72,461.40x = 108,692.10 × 59,328.60
  4. Step 4: Simplify right side
    72,461.40x = 6,448,550,124.06
  5. Step 5: Solve for x
    x = 6,448,550,124.06/72,461.40
  6. Step 6: Final answer
    x = 88,992.90

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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.