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Finding the Fourth Proportional to 134,411.76, 201,603.24 and 40,918.32

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Solution

The fourth proportional to 134,411.76, 201,603.24 and 40,918.32 is: 61,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,411.76 : 201,603.24 = 40,918.32 : x
  2. Step 2: Convert to fraction form
    134,411.76/201,603.24 = 40,918.32/x
  3. Step 3: Cross multiply
    134,411.76x = 201,603.24 × 40,918.32
  4. Step 4: Simplify right side
    134,411.76x = 8,249,265,887.36
  5. Step 5: Solve for x
    x = 8,249,265,887.36/134,411.76
  6. Step 6: Final answer
    x = 61,373.10

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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.