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Finding the Fourth Proportional to 167,329.61, 230,913.58 and 90,847.20

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Solution

The fourth proportional to 167,329.61, 230,913.58 and 90,847.20 is: 125,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,329.61 : 230,913.58 = 90,847.20 : x
  2. Step 2: Convert to fraction form
    167,329.61/230,913.58 = 90,847.20/x
  3. Step 3: Cross multiply
    167,329.61x = 230,913.58 × 90,847.20
  4. Step 4: Simplify right side
    167,329.61x = 20,977,852,994.12
  5. Step 5: Solve for x
    x = 20,977,852,994.12/167,329.61
  6. Step 6: Final answer
    x = 125,368.45

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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.