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Finding the Fourth Proportional to 368,929.66, 553,341.88 and 116,203.59

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Solution

The fourth proportional to 368,929.66, 553,341.88 and 116,203.59 is: 174,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,929.66 : 553,341.88 = 116,203.59 : x
  2. Step 2: Convert to fraction form
    368,929.66/553,341.88 = 116,203.59/x
  3. Step 3: Cross multiply
    368,929.66x = 553,341.88 × 116,203.59
  4. Step 4: Simplify right side
    368,929.66x = 64,300,312,953.35
  5. Step 5: Solve for x
    x = 64,300,312,953.35/368,929.66
  6. Step 6: Final answer
    x = 174,288.81

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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.