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Finding the Fourth Proportional to 118,315.84, 163,276.35 and 64,602.04

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Solution

The fourth proportional to 118,315.84, 163,276.35 and 64,602.04 is: 89,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.84 : 163,276.35 = 64,602.04 : x
  2. Step 2: Convert to fraction form
    118,315.84/163,276.35 = 64,602.04/x
  3. Step 3: Cross multiply
    118,315.84x = 163,276.35 × 64,602.04
  4. Step 4: Simplify right side
    118,315.84x = 10,547,985,293.75
  5. Step 5: Solve for x
    x = 10,547,985,293.75/118,315.84
  6. Step 6: Final answer
    x = 89,151.08

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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.