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Finding the Fourth Proportional to 545,053.48, 817,587.51 and 171,076.48

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Solution

The fourth proportional to 545,053.48, 817,587.51 and 171,076.48 is: 256,617.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,053.48 : 817,587.51 = 171,076.48 : x
  2. Step 2: Convert to fraction form
    545,053.48/817,587.51 = 171,076.48/x
  3. Step 3: Cross multiply
    545,053.48x = 817,587.51 × 171,076.48
  4. Step 4: Simplify right side
    545,053.48x = 139,869,993,302.77
  5. Step 5: Solve for x
    x = 139,869,993,302.77/545,053.48
  6. Step 6: Final answer
    x = 256,617.01

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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.