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Finding the Fourth Proportional to 93,347.77, 128,782.28 and 54,030.89

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Solution

The fourth proportional to 93,347.77, 128,782.28 and 54,030.89 is: 74,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,347.77 : 128,782.28 = 54,030.89 : x
  2. Step 2: Convert to fraction form
    93,347.77/128,782.28 = 54,030.89/x
  3. Step 3: Cross multiply
    93,347.77x = 128,782.28 × 54,030.89
  4. Step 4: Simplify right side
    93,347.77x = 6,958,221,204.63
  5. Step 5: Solve for x
    x = 6,958,221,204.63/93,347.77
  6. Step 6: Final answer
    x = 74,540.84

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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.