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Finding the Fourth Proportional to 84,957.65, 117,124.26 and 67,788.33

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Solution

The fourth proportional to 84,957.65, 117,124.26 and 67,788.33 is: 93,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,957.65 : 117,124.26 = 67,788.33 : x
  2. Step 2: Convert to fraction form
    84,957.65/117,124.26 = 67,788.33/x
  3. Step 3: Cross multiply
    84,957.65x = 117,124.26 × 67,788.33
  4. Step 4: Simplify right side
    84,957.65x = 7,939,657,987.89
  5. Step 5: Solve for x
    x = 7,939,657,987.89/84,957.65
  6. Step 6: Final answer
    x = 93,454.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.