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Finding the Fourth Proportional to 125,555.40, 175,383.90 and 125,555.40

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Solution

The fourth proportional to 125,555.40, 175,383.90 and 125,555.40 is: 175,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,555.40 : 175,383.90 = 125,555.40 : x
  2. Step 2: Convert to fraction form
    125,555.40/175,383.90 = 125,555.40/x
  3. Step 3: Cross multiply
    125,555.40x = 175,383.90 × 125,555.40
  4. Step 4: Simplify right side
    125,555.40x = 22,020,395,718.06
  5. Step 5: Solve for x
    x = 22,020,395,718.06/125,555.40
  6. Step 6: Final answer
    x = 175,383.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.