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Finding the Fourth Proportional to 93,399.99, 128,886.71 and 53,123.55

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Solution

The fourth proportional to 93,399.99, 128,886.71 and 53,123.55 is: 73,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,399.99 : 128,886.71 = 53,123.55 : x
  2. Step 2: Convert to fraction form
    93,399.99/128,886.71 = 53,123.55/x
  3. Step 3: Cross multiply
    93,399.99x = 128,886.71 × 53,123.55
  4. Step 4: Simplify right side
    93,399.99x = 6,846,919,317.40
  5. Step 5: Solve for x
    x = 6,846,919,317.40/93,399.99
  6. Step 6: Final answer
    x = 73,307.50

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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.