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Finding the Fourth Proportional to 92,783.42, 139,173.51 and 64,294.10

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Solution

The fourth proportional to 92,783.42, 139,173.51 and 64,294.10 is: 96,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,783.42 : 139,173.51 = 64,294.10 : x
  2. Step 2: Convert to fraction form
    92,783.42/139,173.51 = 64,294.10/x
  3. Step 3: Cross multiply
    92,783.42x = 139,173.51 × 64,294.10
  4. Step 4: Simplify right side
    92,783.42x = 8,948,035,569.29
  5. Step 5: Solve for x
    x = 8,948,035,569.29/92,783.42
  6. Step 6: Final answer
    x = 96,440.03

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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.