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Finding the Fourth Proportional to 117,671.74, 176,071.52 and 70,312.59

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Solution

The fourth proportional to 117,671.74, 176,071.52 and 70,312.59 is: 105,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,671.74 : 176,071.52 = 70,312.59 : x
  2. Step 2: Convert to fraction form
    117,671.74/176,071.52 = 70,312.59/x
  3. Step 3: Cross multiply
    117,671.74x = 176,071.52 × 70,312.59
  4. Step 4: Simplify right side
    117,671.74x = 12,380,044,772.22
  5. Step 5: Solve for x
    x = 12,380,044,772.22/117,671.74
  6. Step 6: Final answer
    x = 105,208.31

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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.