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Finding the Fourth Proportional to 93,290.66, 128,744.59 and 53,011.26

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Solution

The fourth proportional to 93,290.66, 128,744.59 and 53,011.26 is: 73,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,290.66 : 128,744.59 = 53,011.26 : x
  2. Step 2: Convert to fraction form
    93,290.66/128,744.59 = 53,011.26/x
  3. Step 3: Cross multiply
    93,290.66x = 128,744.59 × 53,011.26
  4. Step 4: Simplify right side
    93,290.66x = 6,824,912,934.08
  5. Step 5: Solve for x
    x = 6,824,912,934.08/93,290.66
  6. Step 6: Final answer
    x = 73,157.52

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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.