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Finding the Fourth Proportional to 78,848.93, 108,808.48 and 43,038.93

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Solution

The fourth proportional to 78,848.93, 108,808.48 and 43,038.93 is: 59,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.93 : 108,808.48 = 43,038.93 : x
  2. Step 2: Convert to fraction form
    78,848.93/108,808.48 = 43,038.93/x
  3. Step 3: Cross multiply
    78,848.93x = 108,808.48 × 43,038.93
  4. Step 4: Simplify right side
    78,848.93x = 4,683,000,554.13
  5. Step 5: Solve for x
    x = 4,683,000,554.13/78,848.93
  6. Step 6: Final answer
    x = 59,392.06

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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.