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Finding the Fourth Proportional to 93,395.26, 128,880.20 and 53,118.82

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Solution

The fourth proportional to 93,395.26, 128,880.20 and 53,118.82 is: 73,300.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,395.26 : 128,880.20 = 53,118.82 : x
  2. Step 2: Convert to fraction form
    93,395.26/128,880.20 = 53,118.82/x
  3. Step 3: Cross multiply
    93,395.26x = 128,880.20 × 53,118.82
  4. Step 4: Simplify right side
    93,395.26x = 6,845,964,145.36
  5. Step 5: Solve for x
    x = 6,845,964,145.36/93,395.26
  6. Step 6: Final answer
    x = 73,300.98

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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.