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Finding the Fourth Proportional to 70,497.35, 97,303.30 and 47,874.05

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Solution

The fourth proportional to 70,497.35, 97,303.30 and 47,874.05 is: 66,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.35 : 97,303.30 = 47,874.05 : x
  2. Step 2: Convert to fraction form
    70,497.35/97,303.30 = 47,874.05/x
  3. Step 3: Cross multiply
    70,497.35x = 97,303.30 × 47,874.05
  4. Step 4: Simplify right side
    70,497.35x = 4,658,302,443.16
  5. Step 5: Solve for x
    x = 4,658,302,443.16/70,497.35
  6. Step 6: Final answer
    x = 66,077.70

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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.