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Finding the Fourth Proportional to 98,886, 148,347.60 and 39,726.36

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Solution

The fourth proportional to 98,886, 148,347.60 and 39,726.36 is: 59,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,886 : 148,347.60 = 39,726.36 : x
  2. Step 2: Convert to fraction form
    98,886/148,347.60 = 39,726.36/x
  3. Step 3: Cross multiply
    98,886x = 148,347.60 × 39,726.36
  4. Step 4: Simplify right side
    98,886x = 5,893,310,162.74
  5. Step 5: Solve for x
    x = 5,893,310,162.74/98,886
  6. Step 6: Final answer
    x = 59,597.01

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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.