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Finding the Fourth Proportional to 64,393.48, 88,948.40 and 53,673.54

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Solution

The fourth proportional to 64,393.48, 88,948.40 and 53,673.54 is: 74,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,393.48 : 88,948.40 = 53,673.54 : x
  2. Step 2: Convert to fraction form
    64,393.48/88,948.40 = 53,673.54/x
  3. Step 3: Cross multiply
    64,393.48x = 88,948.40 × 53,673.54
  4. Step 4: Simplify right side
    64,393.48x = 4,774,175,505.34
  5. Step 5: Solve for x
    x = 4,774,175,505.34/64,393.48
  6. Step 6: Final answer
    x = 74,140.67

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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.