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Finding the Fourth Proportional to 103,674.48, 155,510.70 and 47,498.66

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Solution

The fourth proportional to 103,674.48, 155,510.70 and 47,498.66 is: 71,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,674.48 : 155,510.70 = 47,498.66 : x
  2. Step 2: Convert to fraction form
    103,674.48/155,510.70 = 47,498.66/x
  3. Step 3: Cross multiply
    103,674.48x = 155,510.70 × 47,498.66
  4. Step 4: Simplify right side
    103,674.48x = 7,386,549,865.66
  5. Step 5: Solve for x
    x = 7,386,549,865.66/103,674.48
  6. Step 6: Final answer
    x = 71,247.52

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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.