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Finding the Fourth Proportional to 160,406.25, 221,419.04 and 93,338.25

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Solution

The fourth proportional to 160,406.25, 221,419.04 and 93,338.25 is: 128,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,406.25 : 221,419.04 = 93,338.25 : x
  2. Step 2: Convert to fraction form
    160,406.25/221,419.04 = 93,338.25/x
  3. Step 3: Cross multiply
    160,406.25x = 221,419.04 × 93,338.25
  4. Step 4: Simplify right side
    160,406.25x = 20,666,865,243.59
  5. Step 5: Solve for x
    x = 20,666,865,243.59/160,406.25
  6. Step 6: Final answer
    x = 128,840.77

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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.