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Finding the Fourth Proportional to 65,316.81, 97,432.99 and 63,130.28

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Solution

The fourth proportional to 65,316.81, 97,432.99 and 63,130.28 is: 94,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.81 : 97,432.99 = 63,130.28 : x
  2. Step 2: Convert to fraction form
    65,316.81/97,432.99 = 63,130.28/x
  3. Step 3: Cross multiply
    65,316.81x = 97,432.99 × 63,130.28
  4. Step 4: Simplify right side
    65,316.81x = 6,150,971,137.12
  5. Step 5: Solve for x
    x = 6,150,971,137.12/65,316.81
  6. Step 6: Final answer
    x = 94,171.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.