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Finding the Fourth Proportional to 160,015.72, 220,823.54 and 88,394.24

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Solution

The fourth proportional to 160,015.72, 220,823.54 and 88,394.24 is: 121,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,015.72 : 220,823.54 = 88,394.24 : x
  2. Step 2: Convert to fraction form
    160,015.72/220,823.54 = 88,394.24/x
  3. Step 3: Cross multiply
    160,015.72x = 220,823.54 × 88,394.24
  4. Step 4: Simplify right side
    160,015.72x = 19,519,528,992.41
  5. Step 5: Solve for x
    x = 19,519,528,992.41/160,015.72
  6. Step 6: Final answer
    x = 121,985.07

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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.