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Finding the Fourth Proportional to 93,730.68, 129,348.42 and 51,289.22

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Solution

The fourth proportional to 93,730.68, 129,348.42 and 51,289.22 is: 70,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,730.68 : 129,348.42 = 51,289.22 : x
  2. Step 2: Convert to fraction form
    93,730.68/129,348.42 = 51,289.22/x
  3. Step 3: Cross multiply
    93,730.68x = 129,348.42 × 51,289.22
  4. Step 4: Simplify right side
    93,730.68x = 6,634,178,923.29
  5. Step 5: Solve for x
    x = 6,634,178,923.29/93,730.68
  6. Step 6: Final answer
    x = 70,779.16

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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.