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Finding the Fourth Proportional to 93,274.04, 128,755.50 and 55,541

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Solution

The fourth proportional to 93,274.04, 128,755.50 and 55,541 is: 76,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,274.04 : 128,755.50 = 55,541 : x
  2. Step 2: Convert to fraction form
    93,274.04/128,755.50 = 55,541/x
  3. Step 3: Cross multiply
    93,274.04x = 128,755.50 × 55,541
  4. Step 4: Simplify right side
    93,274.04x = 7,151,209,225.50
  5. Step 5: Solve for x
    x = 7,151,209,225.50/93,274.04
  6. Step 6: Final answer
    x = 76,668.81

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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.