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Finding the Fourth Proportional to 70,467.40, 97,241.88 and 42,188.68

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Solution

The fourth proportional to 70,467.40, 97,241.88 and 42,188.68 is: 58,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,467.40 : 97,241.88 = 42,188.68 : x
  2. Step 2: Convert to fraction form
    70,467.40/97,241.88 = 42,188.68/x
  3. Step 3: Cross multiply
    70,467.40x = 97,241.88 × 42,188.68
  4. Step 4: Simplify right side
    70,467.40x = 4,102,506,557.92
  5. Step 5: Solve for x
    x = 4,102,506,557.92/70,467.40
  6. Step 6: Final answer
    x = 58,218.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.