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Finding the Fourth Proportional to 93,053.76, 128,426.64 and 52,782.12

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Solution

The fourth proportional to 93,053.76, 128,426.64 and 52,782.12 is: 72,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,053.76 : 128,426.64 = 52,782.12 : x
  2. Step 2: Convert to fraction form
    93,053.76/128,426.64 = 52,782.12/x
  3. Step 3: Cross multiply
    93,053.76x = 128,426.64 × 52,782.12
  4. Step 4: Simplify right side
    93,053.76x = 6,778,630,323.68
  5. Step 5: Solve for x
    x = 6,778,630,323.68/93,053.76
  6. Step 6: Final answer
    x = 72,846.39

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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.