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Finding the Fourth Proportional to 104,925.30, 157,424.40 and 45,803.40

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Solution

The fourth proportional to 104,925.30, 157,424.40 and 45,803.40 is: 68,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,925.30 : 157,424.40 = 45,803.40 : x
  2. Step 2: Convert to fraction form
    104,925.30/157,424.40 = 45,803.40/x
  3. Step 3: Cross multiply
    104,925.30x = 157,424.40 × 45,803.40
  4. Step 4: Simplify right side
    104,925.30x = 7,210,572,762.96
  5. Step 5: Solve for x
    x = 7,210,572,762.96/104,925.30
  6. Step 6: Final answer
    x = 68,721.01

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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.