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Finding the Fourth Proportional to 312,407.19, 468,513.68 and 112,701.48

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Solution

The fourth proportional to 312,407.19, 468,513.68 and 112,701.48 is: 169,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,407.19 : 468,513.68 = 112,701.48 : x
  2. Step 2: Convert to fraction form
    312,407.19/468,513.68 = 112,701.48/x
  3. Step 3: Cross multiply
    312,407.19x = 468,513.68 × 112,701.48
  4. Step 4: Simplify right side
    312,407.19x = 52,802,184,572.74
  5. Step 5: Solve for x
    x = 52,802,184,572.74/312,407.19
  6. Step 6: Final answer
    x = 169,017.19

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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.