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Finding the Fourth Proportional to 318,746.96, 478,008.90 and 94,047.74

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Solution

The fourth proportional to 318,746.96, 478,008.90 and 94,047.74 is: 141,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,746.96 : 478,008.90 = 94,047.74 : x
  2. Step 2: Convert to fraction form
    318,746.96/478,008.90 = 94,047.74/x
  3. Step 3: Cross multiply
    318,746.96x = 478,008.90 × 94,047.74
  4. Step 4: Simplify right side
    318,746.96x = 44,955,656,744.89
  5. Step 5: Solve for x
    x = 44,955,656,744.89/318,746.96
  6. Step 6: Final answer
    x = 141,038.70

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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.