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Finding the Fourth Proportional to 194,722.60, 292,083.90 and 70,047.40

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Solution

The fourth proportional to 194,722.60, 292,083.90 and 70,047.40 is: 105,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,722.60 : 292,083.90 = 70,047.40 : x
  2. Step 2: Convert to fraction form
    194,722.60/292,083.90 = 70,047.40/x
  3. Step 3: Cross multiply
    194,722.60x = 292,083.90 × 70,047.40
  4. Step 4: Simplify right side
    194,722.60x = 20,459,717,776.86
  5. Step 5: Solve for x
    x = 20,459,717,776.86/194,722.60
  6. Step 6: Final answer
    x = 105,071.10

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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.