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Finding the Fourth Proportional to 93,303.50, 128,754.16 and 53,011.94

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Solution

The fourth proportional to 93,303.50, 128,754.16 and 53,011.94 is: 73,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,303.50 : 128,754.16 = 53,011.94 : x
  2. Step 2: Convert to fraction form
    93,303.50/128,754.16 = 53,011.94/x
  3. Step 3: Cross multiply
    93,303.50x = 128,754.16 × 53,011.94
  4. Step 4: Simplify right side
    93,303.50x = 6,825,507,804.67
  5. Step 5: Solve for x
    x = 6,825,507,804.67/93,303.50
  6. Step 6: Final answer
    x = 73,153.82

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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.