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Finding the Fourth Proportional to 118,697.84, 163,802.76 and 70,948.88

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Solution

The fourth proportional to 118,697.84, 163,802.76 and 70,948.88 is: 97,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,697.84 : 163,802.76 = 70,948.88 : x
  2. Step 2: Convert to fraction form
    118,697.84/163,802.76 = 70,948.88/x
  3. Step 3: Cross multiply
    118,697.84x = 163,802.76 × 70,948.88
  4. Step 4: Simplify right side
    118,697.84x = 11,621,622,362.91
  5. Step 5: Solve for x
    x = 11,621,622,362.91/118,697.84
  6. Step 6: Final answer
    x = 97,909.30

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1.5x scale

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.