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Finding the Fourth Proportional to 67,412.30, 101,118.45 and 64,820.30

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Solution

The fourth proportional to 67,412.30, 101,118.45 and 64,820.30 is: 97,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,412.30 : 101,118.45 = 64,820.30 : x
  2. Step 2: Convert to fraction form
    67,412.30/101,118.45 = 64,820.30/x
  3. Step 3: Cross multiply
    67,412.30x = 101,118.45 × 64,820.30
  4. Step 4: Simplify right side
    67,412.30x = 6,554,528,264.54
  5. Step 5: Solve for x
    x = 6,554,528,264.54/67,412.30
  6. Step 6: Final answer
    x = 97,230.45

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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.