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Finding the Fourth Proportional to 93,387.51, 128,858.64 and 52,545.95

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Solution

The fourth proportional to 93,387.51, 128,858.64 and 52,545.95 is: 72,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.51 : 128,858.64 = 52,545.95 : x
  2. Step 2: Convert to fraction form
    93,387.51/128,858.64 = 52,545.95/x
  3. Step 3: Cross multiply
    93,387.51x = 128,858.64 × 52,545.95
  4. Step 4: Simplify right side
    93,387.51x = 6,770,999,010.21
  5. Step 5: Solve for x
    x = 6,770,999,010.21/93,387.51
  6. Step 6: Final answer
    x = 72,504.33

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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.