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Finding the Fourth Proportional to 93,889.90, 129,567.63 and 51,448.20

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Solution

The fourth proportional to 93,889.90, 129,567.63 and 51,448.20 is: 70,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,889.90 : 129,567.63 = 51,448.20 : x
  2. Step 2: Convert to fraction form
    93,889.90/129,567.63 = 51,448.20/x
  3. Step 3: Cross multiply
    93,889.90x = 129,567.63 × 51,448.20
  4. Step 4: Simplify right side
    93,889.90x = 6,666,021,341.77
  5. Step 5: Solve for x
    x = 6,666,021,341.77/93,889.90
  6. Step 6: Final answer
    x = 70,998.28

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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.