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Finding the Fourth Proportional to 70,373.86, 105,561.48 and 17,783.35

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Solution

The fourth proportional to 70,373.86, 105,561.48 and 17,783.35 is: 26,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,373.86 : 105,561.48 = 17,783.35 : x
  2. Step 2: Convert to fraction form
    70,373.86/105,561.48 = 17,783.35/x
  3. Step 3: Cross multiply
    70,373.86x = 105,561.48 × 17,783.35
  4. Step 4: Simplify right side
    70,373.86x = 1,877,236,448.11
  5. Step 5: Solve for x
    x = 1,877,236,448.11/70,373.86
  6. Step 6: Final answer
    x = 26,675.19

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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.