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Finding the Fourth Proportional to 92,802.94, 128,066.70 and 54,566.80

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Solution

The fourth proportional to 92,802.94, 128,066.70 and 54,566.80 is: 75,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,802.94 : 128,066.70 = 54,566.80 : x
  2. Step 2: Convert to fraction form
    92,802.94/128,066.70 = 54,566.80/x
  3. Step 3: Cross multiply
    92,802.94x = 128,066.70 × 54,566.80
  4. Step 4: Simplify right side
    92,802.94x = 6,988,190,005.56
  5. Step 5: Solve for x
    x = 6,988,190,005.56/92,802.94
  6. Step 6: Final answer
    x = 75,301.39

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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.