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Finding the Fourth Proportional to 219,803.16, 303,326.34 and 124,328.52

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Solution

The fourth proportional to 219,803.16, 303,326.34 and 124,328.52 is: 171,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,803.16 : 303,326.34 = 124,328.52 : x
  2. Step 2: Convert to fraction form
    219,803.16/303,326.34 = 124,328.52/x
  3. Step 3: Cross multiply
    219,803.16x = 303,326.34 × 124,328.52
  4. Step 4: Simplify right side
    219,803.16x = 37,712,114,929.22
  5. Step 5: Solve for x
    x = 37,712,114,929.22/219,803.16
  6. Step 6: Final answer
    x = 171,572.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.