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Finding the Fourth Proportional to 56,603.60, 78,088.74 and 35,345.96

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Solution

The fourth proportional to 56,603.60, 78,088.74 and 35,345.96 is: 48,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.60 : 78,088.74 = 35,345.96 : x
  2. Step 2: Convert to fraction form
    56,603.60/78,088.74 = 35,345.96/x
  3. Step 3: Cross multiply
    56,603.60x = 78,088.74 × 35,345.96
  4. Step 4: Simplify right side
    56,603.60x = 2,760,121,480.49
  5. Step 5: Solve for x
    x = 2,760,121,480.49/56,603.60
  6. Step 6: Final answer
    x = 48,762.30

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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.