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Finding the Fourth Proportional to 315,535.06, 435,494.51 and 186,468.04

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Solution

The fourth proportional to 315,535.06, 435,494.51 and 186,468.04 is: 257,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,535.06 : 435,494.51 = 186,468.04 : x
  2. Step 2: Convert to fraction form
    315,535.06/435,494.51 = 186,468.04/x
  3. Step 3: Cross multiply
    315,535.06x = 435,494.51 × 186,468.04
  4. Step 4: Simplify right side
    315,535.06x = 81,205,807,710.46
  5. Step 5: Solve for x
    x = 81,205,807,710.46/315,535.06
  6. Step 6: Final answer
    x = 257,359.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.