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Finding the Fourth Proportional to 93,000.56, 128,275.80 and 61,159.28

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Solution

The fourth proportional to 93,000.56, 128,275.80 and 61,159.28 is: 84,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,000.56 : 128,275.80 = 61,159.28 : x
  2. Step 2: Convert to fraction form
    93,000.56/128,275.80 = 61,159.28/x
  3. Step 3: Cross multiply
    93,000.56x = 128,275.80 × 61,159.28
  4. Step 4: Simplify right side
    93,000.56x = 7,845,255,569.42
  5. Step 5: Solve for x
    x = 7,845,255,569.42/93,000.56
  6. Step 6: Final answer
    x = 84,357.08

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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.