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Finding the Fourth Proportional to 98,256.48, 147,261.40 and 42,030.48

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Solution

The fourth proportional to 98,256.48, 147,261.40 and 42,030.48 is: 62,992.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,256.48 : 147,261.40 = 42,030.48 : x
  2. Step 2: Convert to fraction form
    98,256.48/147,261.40 = 42,030.48/x
  3. Step 3: Cross multiply
    98,256.48x = 147,261.40 × 42,030.48
  4. Step 4: Simplify right side
    98,256.48x = 6,189,467,327.47
  5. Step 5: Solve for x
    x = 6,189,467,327.47/98,256.48
  6. Step 6: Final answer
    x = 62,992.97

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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.