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Finding the Fourth Proportional to 113,347.30, 156,413.01 and 63,043.06

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Solution

The fourth proportional to 113,347.30, 156,413.01 and 63,043.06 is: 86,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,347.30 : 156,413.01 = 63,043.06 : x
  2. Step 2: Convert to fraction form
    113,347.30/156,413.01 = 63,043.06/x
  3. Step 3: Cross multiply
    113,347.30x = 156,413.01 × 63,043.06
  4. Step 4: Simplify right side
    113,347.30x = 9,860,754,774.21
  5. Step 5: Solve for x
    x = 9,860,754,774.21/113,347.30
  6. Step 6: Final answer
    x = 86,995.94

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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.