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Finding the Fourth Proportional to 70,316.88, 97,034.88 and 40,111.98

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Solution

The fourth proportional to 70,316.88, 97,034.88 and 40,111.98 is: 55,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,316.88 : 97,034.88 = 40,111.98 : x
  2. Step 2: Convert to fraction form
    70,316.88/97,034.88 = 40,111.98/x
  3. Step 3: Cross multiply
    70,316.88x = 97,034.88 × 40,111.98
  4. Step 4: Simplify right side
    70,316.88x = 3,892,261,165.86
  5. Step 5: Solve for x
    x = 3,892,261,165.86/70,316.88
  6. Step 6: Final answer
    x = 55,353.16

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1.5x scale

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.