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Finding the Fourth Proportional to 67,802.40, 101,703.60 and 46,807.20

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Solution

The fourth proportional to 67,802.40, 101,703.60 and 46,807.20 is: 70,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,802.40 : 101,703.60 = 46,807.20 : x
  2. Step 2: Convert to fraction form
    67,802.40/101,703.60 = 46,807.20/x
  3. Step 3: Cross multiply
    67,802.40x = 101,703.60 × 46,807.20
  4. Step 4: Simplify right side
    67,802.40x = 4,760,460,745.92
  5. Step 5: Solve for x
    x = 4,760,460,745.92/67,802.40
  6. Step 6: Final answer
    x = 70,210.80

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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.