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Finding the Fourth Proportional to 170,641.05, 255,852.22 and 70,870.11

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Solution

The fourth proportional to 170,641.05, 255,852.22 and 70,870.11 is: 106,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,641.05 : 255,852.22 = 70,870.11 : x
  2. Step 2: Convert to fraction form
    170,641.05/255,852.22 = 70,870.11/x
  3. Step 3: Cross multiply
    170,641.05x = 255,852.22 × 70,870.11
  4. Step 4: Simplify right side
    170,641.05x = 18,132,273,971.40
  5. Step 5: Solve for x
    x = 18,132,273,971.40/170,641.05
  6. Step 6: Final answer
    x = 106,259.74

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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.