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Finding the Fourth Proportional to 101,303.25, 139,798.49 and 56,591.25

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Solution

The fourth proportional to 101,303.25, 139,798.49 and 56,591.25 is: 78,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,303.25 : 139,798.49 = 56,591.25 : x
  2. Step 2: Convert to fraction form
    101,303.25/139,798.49 = 56,591.25/x
  3. Step 3: Cross multiply
    101,303.25x = 139,798.49 × 56,591.25
  4. Step 4: Simplify right side
    101,303.25x = 7,911,371,014.26
  5. Step 5: Solve for x
    x = 7,911,371,014.26/101,303.25
  6. Step 6: Final answer
    x = 78,095.93

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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.