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Finding the Fourth Proportional to 101,341.26, 139,848.70 and 56,017.50

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Solution

The fourth proportional to 101,341.26, 139,848.70 and 56,017.50 is: 77,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,341.26 : 139,848.70 = 56,017.50 : x
  2. Step 2: Convert to fraction form
    101,341.26/139,848.70 = 56,017.50/x
  3. Step 3: Cross multiply
    101,341.26x = 139,848.70 × 56,017.50
  4. Step 4: Simplify right side
    101,341.26x = 7,833,974,552.25
  5. Step 5: Solve for x
    x = 7,833,974,552.25/101,341.26
  6. Step 6: Final answer
    x = 77,302.91

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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.