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Finding the Fourth Proportional to 93,070.82, 128,434.01 and 50,628.44

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Solution

The fourth proportional to 93,070.82, 128,434.01 and 50,628.44 is: 69,865.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,070.82 : 128,434.01 = 50,628.44 : x
  2. Step 2: Convert to fraction form
    93,070.82/128,434.01 = 50,628.44/x
  3. Step 3: Cross multiply
    93,070.82x = 128,434.01 × 50,628.44
  4. Step 4: Simplify right side
    93,070.82x = 6,502,413,637.19
  5. Step 5: Solve for x
    x = 6,502,413,637.19/93,070.82
  6. Step 6: Final answer
    x = 69,865.22

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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.