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Finding the Fourth Proportional to 79,347.40, 119,030.88 and 34,985.32

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Solution

The fourth proportional to 79,347.40, 119,030.88 and 34,985.32 is: 52,482.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.40 : 119,030.88 = 34,985.32 : x
  2. Step 2: Convert to fraction form
    79,347.40/119,030.88 = 34,985.32/x
  3. Step 3: Cross multiply
    79,347.40x = 119,030.88 × 34,985.32
  4. Step 4: Simplify right side
    79,347.40x = 4,164,333,426.68
  5. Step 5: Solve for x
    x = 4,164,333,426.68/79,347.40
  6. Step 6: Final answer
    x = 52,482.29

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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.