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Finding the Fourth Proportional to 103,673.98, 155,509.95 and 47,498.16

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Solution

The fourth proportional to 103,673.98, 155,509.95 and 47,498.16 is: 71,246.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.98 : 155,509.95 = 47,498.16 : x
  2. Step 2: Convert to fraction form
    103,673.98/155,509.95 = 47,498.16/x
  3. Step 3: Cross multiply
    103,673.98x = 155,509.95 × 47,498.16
  4. Step 4: Simplify right side
    103,673.98x = 7,386,436,486.69
  5. Step 5: Solve for x
    x = 7,386,436,486.69/103,673.98
  6. Step 6: Final answer
    x = 71,246.77

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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.