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Finding the Fourth Proportional to 173,870.80, 260,368.80 and 114,384.40

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Solution

The fourth proportional to 173,870.80, 260,368.80 and 114,384.40 is: 171,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,870.80 : 260,368.80 = 114,384.40 : x
  2. Step 2: Convert to fraction form
    173,870.80/260,368.80 = 114,384.40/x
  3. Step 3: Cross multiply
    173,870.80x = 260,368.80 × 114,384.40
  4. Step 4: Simplify right side
    173,870.80x = 29,782,128,966.72
  5. Step 5: Solve for x
    x = 29,782,128,966.72/173,870.80
  6. Step 6: Final answer
    x = 171,288.85

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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.