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Finding the Fourth Proportional to 292,633.38, 438,684.08 and 112,603.95

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Solution

The fourth proportional to 292,633.38, 438,684.08 and 112,603.95 is: 168,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,633.38 : 438,684.08 = 112,603.95 : x
  2. Step 2: Convert to fraction form
    292,633.38/438,684.08 = 112,603.95/x
  3. Step 3: Cross multiply
    292,633.38x = 438,684.08 × 112,603.95
  4. Step 4: Simplify right side
    292,633.38x = 49,397,559,647.10
  5. Step 5: Solve for x
    x = 49,397,559,647.10/292,633.38
  6. Step 6: Final answer
    x = 168,803.57

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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.