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Finding the Fourth Proportional to 93,117.84, 128,276.82 and 69,203.04

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Solution

The fourth proportional to 93,117.84, 128,276.82 and 69,203.04 is: 95,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.84 : 128,276.82 = 69,203.04 : x
  2. Step 2: Convert to fraction form
    93,117.84/128,276.82 = 69,203.04/x
  3. Step 3: Cross multiply
    93,117.84x = 128,276.82 × 69,203.04
  4. Step 4: Simplify right side
    93,117.84x = 8,877,145,905.53
  5. Step 5: Solve for x
    x = 8,877,145,905.53/93,117.84
  6. Step 6: Final answer
    x = 95,332.39

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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.