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Finding the Fourth Proportional to 119,488.95, 164,875.46 and 68,492.30

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Solution

The fourth proportional to 119,488.95, 164,875.46 and 68,492.30 is: 94,508.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,488.95 : 164,875.46 = 68,492.30 : x
  2. Step 2: Convert to fraction form
    119,488.95/164,875.46 = 68,492.30/x
  3. Step 3: Cross multiply
    119,488.95x = 164,875.46 × 68,492.30
  4. Step 4: Simplify right side
    119,488.95x = 11,292,698,302.12
  5. Step 5: Solve for x
    x = 11,292,698,302.12/119,488.95
  6. Step 6: Final answer
    x = 94,508.31

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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.