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Finding the Fourth Proportional to 93,406.37, 128,903.63 and 53,125.93

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Solution

The fourth proportional to 93,406.37, 128,903.63 and 53,125.93 is: 73,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,406.37 : 128,903.63 = 53,125.93 : x
  2. Step 2: Convert to fraction form
    93,406.37/128,903.63 = 53,125.93/x
  3. Step 3: Cross multiply
    93,406.37x = 128,903.63 × 53,125.93
  4. Step 4: Simplify right side
    93,406.37x = 6,848,124,579.61
  5. Step 5: Solve for x
    x = 6,848,124,579.61/93,406.37
  6. Step 6: Final answer
    x = 73,315.40

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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.