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Finding the Fourth Proportional to 118,339.02, 163,328.94 and 69,938.96

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Solution

The fourth proportional to 118,339.02, 163,328.94 and 69,938.96 is: 96,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.02 : 163,328.94 = 69,938.96 : x
  2. Step 2: Convert to fraction form
    118,339.02/163,328.94 = 69,938.96/x
  3. Step 3: Cross multiply
    118,339.02x = 163,328.94 × 69,938.96
  4. Step 4: Simplify right side
    118,339.02x = 11,423,055,384.86
  5. Step 5: Solve for x
    x = 11,423,055,384.86/118,339.02
  6. Step 6: Final answer
    x = 96,528.22

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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.