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Finding the Fourth Proportional to 74,692.60, 112,038.90 and 63,417.40

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Solution

The fourth proportional to 74,692.60, 112,038.90 and 63,417.40 is: 95,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,692.60 : 112,038.90 = 63,417.40 : x
  2. Step 2: Convert to fraction form
    74,692.60/112,038.90 = 63,417.40/x
  3. Step 3: Cross multiply
    74,692.60x = 112,038.90 × 63,417.40
  4. Step 4: Simplify right side
    74,692.60x = 7,105,215,736.86
  5. Step 5: Solve for x
    x = 7,105,215,736.86/74,692.60
  6. Step 6: Final answer
    x = 95,126.10

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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.