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Finding the Fourth Proportional to 191,017.70, 286,656.15 and 124,295.30

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Solution

The fourth proportional to 191,017.70, 286,656.15 and 124,295.30 is: 186,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,017.70 : 286,656.15 = 124,295.30 : x
  2. Step 2: Convert to fraction form
    191,017.70/286,656.15 = 124,295.30/x
  3. Step 3: Cross multiply
    191,017.70x = 286,656.15 × 124,295.30
  4. Step 4: Simplify right side
    191,017.70x = 35,630,012,161.10
  5. Step 5: Solve for x
    x = 35,630,012,161.10/191,017.70
  6. Step 6: Final answer
    x = 186,527.28

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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.