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Finding the Fourth Proportional to 71,681.33, 106,984.95 and 70,498.83

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Solution

The fourth proportional to 71,681.33, 106,984.95 and 70,498.83 is: 105,220.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,681.33 : 106,984.95 = 70,498.83 : x
  2. Step 2: Convert to fraction form
    71,681.33/106,984.95 = 70,498.83/x
  3. Step 3: Cross multiply
    71,681.33x = 106,984.95 × 70,498.83
  4. Step 4: Simplify right side
    71,681.33x = 7,542,313,802.61
  5. Step 5: Solve for x
    x = 7,542,313,802.61/71,681.33
  6. Step 6: Final answer
    x = 105,220.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.