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Finding the Fourth Proportional to 170,070.40, 255,094.80 and 57,750.40

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Solution

The fourth proportional to 170,070.40, 255,094.80 and 57,750.40 is: 86,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,070.40 : 255,094.80 = 57,750.40 : x
  2. Step 2: Convert to fraction form
    170,070.40/255,094.80 = 57,750.40/x
  3. Step 3: Cross multiply
    170,070.40x = 255,094.80 × 57,750.40
  4. Step 4: Simplify right side
    170,070.40x = 14,731,826,737.92
  5. Step 5: Solve for x
    x = 14,731,826,737.92/170,070.40
  6. Step 6: Final answer
    x = 86,621.93

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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.