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Finding the Fourth Proportional to 70,570.70, 97,388.67 and 38,742.50

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Solution

The fourth proportional to 70,570.70, 97,388.67 and 38,742.50 is: 53,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,570.70 : 97,388.67 = 38,742.50 : x
  2. Step 2: Convert to fraction form
    70,570.70/97,388.67 = 38,742.50/x
  3. Step 3: Cross multiply
    70,570.70x = 97,388.67 × 38,742.50
  4. Step 4: Simplify right side
    70,570.70x = 3,773,080,547.48
  5. Step 5: Solve for x
    x = 3,773,080,547.48/70,570.70
  6. Step 6: Final answer
    x = 53,465.26

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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.