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Finding the Fourth Proportional to 315,708.75, 473,603.40 and 144,889.02

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Solution

The fourth proportional to 315,708.75, 473,603.40 and 144,889.02 is: 217,352.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,708.75 : 473,603.40 = 144,889.02 : x
  2. Step 2: Convert to fraction form
    315,708.75/473,603.40 = 144,889.02/x
  3. Step 3: Cross multiply
    315,708.75x = 473,603.40 × 144,889.02
  4. Step 4: Simplify right side
    315,708.75x = 68,619,932,494.67
  5. Step 5: Solve for x
    x = 68,619,932,494.67/315,708.75
  6. Step 6: Final answer
    x = 217,352.01

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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.