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Finding the Fourth Proportional to 67,409.20, 101,113.80 and 62,340.40

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Solution

The fourth proportional to 67,409.20, 101,113.80 and 62,340.40 is: 93,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,409.20 : 101,113.80 = 62,340.40 : x
  2. Step 2: Convert to fraction form
    67,409.20/101,113.80 = 62,340.40/x
  3. Step 3: Cross multiply
    67,409.20x = 101,113.80 × 62,340.40
  4. Step 4: Simplify right side
    67,409.20x = 6,303,474,737.52
  5. Step 5: Solve for x
    x = 6,303,474,737.52/67,409.20
  6. Step 6: Final answer
    x = 93,510.60

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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.