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Finding the Fourth Proportional to 64,955.61, 97,655.76 and 60,085.89

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Solution

The fourth proportional to 64,955.61, 97,655.76 and 60,085.89 is: 90,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.61 : 97,655.76 = 60,085.89 : x
  2. Step 2: Convert to fraction form
    64,955.61/97,655.76 = 60,085.89/x
  3. Step 3: Cross multiply
    64,955.61x = 97,655.76 × 60,085.89
  4. Step 4: Simplify right side
    64,955.61x = 5,867,733,253.23
  5. Step 5: Solve for x
    x = 5,867,733,253.23/64,955.61
  6. Step 6: Final answer
    x = 90,334.51

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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.