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Finding the Fourth Proportional to 93,142.88, 139,715.76 and 51,852.32

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Solution

The fourth proportional to 93,142.88, 139,715.76 and 51,852.32 is: 77,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,142.88 : 139,715.76 = 51,852.32 : x
  2. Step 2: Convert to fraction form
    93,142.88/139,715.76 = 51,852.32/x
  3. Step 3: Cross multiply
    93,142.88x = 139,715.76 × 51,852.32
  4. Step 4: Simplify right side
    93,142.88x = 7,244,586,296.56
  5. Step 5: Solve for x
    x = 7,244,586,296.56/93,142.88
  6. Step 6: Final answer
    x = 77,779.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.