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Finding the Fourth Proportional to 101,413.11, 139,948.05 and 56,093.01

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Solution

The fourth proportional to 101,413.11, 139,948.05 and 56,093.01 is: 77,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,413.11 : 139,948.05 = 56,093.01 : x
  2. Step 2: Convert to fraction form
    101,413.11/139,948.05 = 56,093.01/x
  3. Step 3: Cross multiply
    101,413.11x = 139,948.05 × 56,093.01
  4. Step 4: Simplify right side
    101,413.11x = 7,850,107,368.13
  5. Step 5: Solve for x
    x = 7,850,107,368.13/101,413.11
  6. Step 6: Final answer
    x = 77,407.22

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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.