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Finding the Fourth Proportional to 119,918, 179,885.72 and 46,046

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Solution

The fourth proportional to 119,918, 179,885.72 and 46,046 is: 69,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,918 : 179,885.72 = 46,046 : x
  2. Step 2: Convert to fraction form
    119,918/179,885.72 = 46,046/x
  3. Step 3: Cross multiply
    119,918x = 179,885.72 × 46,046
  4. Step 4: Simplify right side
    119,918x = 8,283,017,863.12
  5. Step 5: Solve for x
    x = 8,283,017,863.12/119,918
  6. Step 6: Final answer
    x = 69,072.35

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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.