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Finding the Fourth Proportional to 173,858.40, 260,641.80 and 90,752.40

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Solution

The fourth proportional to 173,858.40, 260,641.80 and 90,752.40 is: 136,052.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,858.40 : 260,641.80 = 90,752.40 : x
  2. Step 2: Convert to fraction form
    173,858.40/260,641.80 = 90,752.40/x
  3. Step 3: Cross multiply
    173,858.40x = 260,641.80 × 90,752.40
  4. Step 4: Simplify right side
    173,858.40x = 23,653,868,890.32
  5. Step 5: Solve for x
    x = 23,653,868,890.32/173,858.40
  6. Step 6: Final answer
    x = 136,052.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.